Please see NICE guidance on this topic:
NICE Quality Standards for Venous Thromboembolic Diseases, 2013
NICE Guideline for Venous Thromboembolic Diseases 2012
NICE Guideline: Venous Thromboembolism, reducing the risk 2010
SUPERCEDED - BTS Guidelines for the Management of Suspected Acute Pulmonary Embolism, 2003
The British Thoracic Society Standards of Care Committee, Pulmonary Embolism Guideline Development Group
Thorax 2003: 58: 470-484
The British Thoracic Society Standards of Care Committee, Pulmonary Embolism Guideline Development Group
Thorax 2003: 58: 470-484
Download the Guideline here
SUPERCEDED -
Suspected Acute Pulmonary Embolism - a Practical Approach Thorax 1997; 52: (Suppl 3)
Download the Statement here
Guidance on the D-Dimer test is available here.